Wall Rock

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wall rock [′wȯl ¦räk]

(geology)

Rock that encloses a vein.

Wall Rock

mountain rock lying directly against a layer or vein of mineral ore. Wall rock is called the roof or floor of a deposit when in a sloping or gently inclined position; it is called the hanging or lying side when it is on a steep incline. The properties and condition of the wall rock influence the selection of the system of extracting minerals, as well as the technical-economic indexes of the construction and exploitation of mining enterprises.

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No references found			The company says that to date, drilling on the Nevada Project has yet to locate the porphyry intrusive body suggested by the alteration of the wall rock. Junior miner soars on claims acquisition by Helen Burnett-Nichols / Stockhouse But the record's title track makes mentions the Falun Gong meditation movement that was banned by China as an "evil cult" and warns "if your Great Wall rocks, blame yourself", in an apparent message to the country's authoritarian government. New Guns N' Roses album invites China's ire by Asian News International The exposed mineralization comprises a quartz-sulfide lode with high grades of gold and possibly gold-rich wall rock alteration zones related to the high grade lodes. Brazauro Initiates Drilling Program at Crepori Gold Project in Brazil by Business Wire			wall handrail wall hanger wall height wall hook wall humping wall iron wall joint wall line wall liner Wall Materials Wall Newspaper wall off wall opening wall outlet Wall Painting wall panel wall piece wall plate wall plug wall pocket wall post wall rail wall ratio wall reef wall rib Wall Rock wall shaft wall siding wall sign wall socket wall spacer wall stay Wall Street Wall Street Journal, the Wall Street N.Y.C. Wall Street Rat Race wall string wall stringer wall superheat Wall Tapestry wall tie wall tile wall time wall tower wall tracery Tracery wall vent wall wart Wall, Richard wall-attachment amplifier wall-attachment effect wall-bearing partition			Wall pie Wall piece Wall piece wall plate wall plate wall plate wall plates wall plates wall plug wall plug wall plugs wall plugs wall pocket wall pocket wall pockets wall post Wall Post Indicator Valve Wall pressure Wall pressure Wall pressure Wall Push-Up wall rail Wall railings Wall railings Wall railings Wall railings wall ratio wall reef wall rib wall rib Wall Rock wall rocket wall rockets wall rocks wall rocks wall round wall rue wall rue spleenwort wall rues Wall scroll wall shaft Wall Shear Adhesion Threshold Wall shear stress Wall shear stress Wall Shear Stress Angle Gradient Wall Shear Stress Gradient wall siding wall siding wall siding wall sign wall sign Wall Slide wall socket wall socket wall spacer Wall Speedwell Wall spring Wall St Wall St Wall St Wall St.

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